Thread-breaking device for spinning machines



May 12, 1925'. 1,537,532

F. Q. HARTMAN ET AL THREAD BREAKING DEVICE FOR SPINNING MACHINES FiledJan. 25', 1925 ATTORNEYS Patented May 12, 1925.

PATENT FFIQ FERDINAND Q. HARTMAN AND EUGENE ATWOOD HARTIVIAN, 0FDANV'ILLE, PENN- SYLVANIA. i

THREAD-BREAKING DEVICE FOR- SPINNING MACHINES.

Application filed January 23, 1925.

To all whom it may concern:

Be it known that we, FERDINAND Q. HART- MAN and EUGENE A'rwoon HARTMAN,citizens of the United States, and residents of Danville, in the countyof Montour and State of Pennsylvania, have invented a new and usefulImprovement in Thread-Breaking Devices for Spinning Machines, of whichthe following is a specification.

Our invention relates to a thread breaking device for spinning machinesand more particularly to a thread breaking device which may be appliedto spinners for independently spinning a plurality of threads andwinding the threads so spun on a single spool, from which spool thethreads are sub sequently to be twisted into one strand on a twistingmachine. spinning a plurality of threads at the same time and windingthem together on a spool or bobbin, that a single thread or aless numberthan the whole number of threads being spun, be not allowed to run ontothe spool as this would produce a serious defect when the threads sospunare finally twisted into a. strand. v

Our present invention is directed to a thread breaking device which maybe interposed between the spindles and the take up spool upon which thespun threads are wound, and which shall be under the control of threadsupporting devices carried by the breaker, to perform the function ofbreaking a companion thread when another thread is unintentionallyparted, so that the several threads may be united before any one or moreof the threads has or have been allowed to be wound upon the take upspool without its or their companion thread or threads.

The object of our invention is to provide a device of this characterwhichis efficient, positive in operation, simple in construction, andinexpensive to manufacture.

Another object consists in providing a device which has a thread guidingbar mounted to oscillate on the thread breaker, which is located inposition to be thrown off center by the rocking movement of the bar,which movement is actuated by the breaking of a thread.

Another object is to provide a device having a horizontally disposed barrotatably mounted in the device for supporting the It is very essentialin.

Serial No. 4,251.

threads and relieving the bar of certain frictional contact as thethread passes thereover. Another object is to provide a structure havingguide arms vertically disposed to spread or separate the threadslaterally on the supporting bar of the thread breaker.

Another object is to provide novel means of mounting the device on thethread breaker so that the device may be limited in its oscillatorymovement thereon.

Another object consists in providing certain improvements in the form,construction and arrangement of the several parts whereby the abovenamed and other objects may be effectively attained.-

A- practical embodiment of our invention is represented in theaccompanying drawings, in which i Fig. 1 represents a front elevation ofthe device in operative position so much of. a spinning machine beingshown as will suflice to disclose apractical application of'ourinvention. t

Fig. 2 represents a vertical section taken in the plane of the lineII-II of Fig. *1,

looking in the direction of the arrows.

Fig. 3 represents a detail horizontal section taken in the plane of theline III-III of Fig. 2, looking in the direction of the ar rows;

Fig. 4. represents a front elevation of, a

modified form of spreader for the threads.

Fig. 5 represents a side elevation of the same.

Fig. 6 represents a detail plan view on a larger scale of the device forsupporting the threads together with the means by which it is mounted onthe thread breaker.

Fig. 7"represents a vertical section taken in theplane of the lineVIIVII ofFig. 6. looking in the direction'of the arrows, and

Fig. 8 represents a vertical section taken in the plane of the lineVHF-VIII of Fig. 6. looking in the direction of the arrows.

In the form shown in Figs. 1 to 3 inclusive. the main frame of themachine at one. end is denoted by 1. the take up spool by 2, thetraverse guide for assembling the threads and laying them on the take upspool. by 3, the wheel for driving the take u up spool by 4, and a pairof spindles for spinning two independent threads by 5, 6.

The bobbins which carry the threads are mounted on the spindles 5 and 6in the usual machine.

manner and are indicated by 7 and 8. The a threads which lead from therespective bobbins 7, 8 are denoted by 9 and 10. For the purpose ofsupporting the thread breaker mechanism in proper position on thespinning machine so that there shall be one for each group of threads tobe combined on a single take up spool, we secure a horizontal rail 11 tothe end frame of the spinning This rail may be composed oi" wood so'asto receive screws 12 for attaching the brackets 13 of the threadbreaking mechanism in position. Each bracket 13 1s provided with a frame1 1- having depending lugs 15, 16 arranged to receive a pintle 17 uponwhich is mounted a thread breaker 18. The thread breaker 18 comprises adownwardly extending arm 19 having a cross :head 20 which terminatesinhook eyes 21, 22, and an upwardly extending arm 23 which is so weightedas to overbalance the downwardly extending arm 19. Upon the upper'end ofthe arm 23 there is mounted a thread guiding device, which comprises, inthe present instance, a rectangular block 24 having a horizontallydisposed bar 25 mounted to rotate therein- This bar 25 e2:-

tends in opposite directions from the block 24 and is maintained in thisposition by means of wire collars 26, 27 secured thereto. The block-issecured in position to oscillate on the ar1n23 by means of a U-shapedelement 28 having a member 29 arranged to pass'through anop'ening 30 inthe block 24 and to be seated in a recess 31 in the arm 23. The othermember 32 of the element 28 extends downwardly and is provided with a.laterally turned end 33 which enters a hole in the arm 23. The members29 and 32 of the element 28 are arranged to yield so that the end 33will be normally heldin the hole 34.

A pair of guide arms 35, 36 are disposed in the frame 141 andextenclupwardly and outwardly in front of the rotatable bar 25 so as to holdthe threads in position upon opposite sides of the block 2 1 as theypass over and from the bar 25.

A guide eye 37 is secured to a support 38 fixed to the frame 14, bymeans of a screw 39, which guide eye 37 tends to assemble the threads intheir passage upwardly and over the traverse bar 3 to the take up spool2.

In the modified form shown in Figs. 42 and 5, the guide arms 10 and 41are disposed in a frame 42 and extend upwardly and outwardly therefrom.Each of the guide arms 40, 4:1 is provided with a guide eye-or pigtail13 arranged in opposite relation and serves-to holdits thread inposition'on a rotatable guide bar 44 carried by a rectangular block 45,which is mounted to oscillate on aU-shaped element 46 secured to theupwardly extending arm 47 or" the thread breaker 48.

lVhile we have specifically described the block and its adjacent partsas shown in Figs. 1, 2, 3, 6, 7 and 8, we wish to particularly point outthe fact that the breaker 18 with its rectangular block 45 and itsadjacent parts as shown in the modified form in Figs. 4 and 5 andoperation.

In operation of the structure shown in Figs. 1 to 3 inclusive, thethreads which lead from the bobbins 7, 8 are directed upwardly uponopposite sides of the breaker 18', over the rotatable bar 25, thenceoutwardly and substantially at right angles thereto, thence partiallyaround the guide arms 35, 36 in wardly to the guide eye 37, where theyare associated and travel upwardly over the traverse bar 3 onto the takeup spool 2. 11 during the operation of the machine, one of the threads9, 10 accidentally breaks, the tension on one end of the rotatable bar25 will be relieved and the drag of the unbroken thread on the oppositeend of the bar 25 will cause the block 24; to rock or swing arcuately onthe member 29 of the element overbalance the breaker 18 and cause theupwardly extending arm 23 to move rearare identical in structure wardlyby grai'ity and the downwardly eX- tending arm 19 to swing forwardly'tothe position shown in dotted outline in Fig. 2. in this position thecrosshead 20- with its book eyes 21, 22, will be brought into the pathof the whirl of the unbroken thread, which will be caught by one of thehook eyes 21, 22, form a loop therein, which will promptly break theunbroken thread. Thus the operator will be enabled to join the brokenends of each of the group of threads being wound upon the take up spool2, so that there may be, at no time, any distance of single thread woundon the take: up spool and the defect which would otherwise take place inthe finally twistedstrand is thereby avoided.

In operation of the form shown in Figs. 4 and 5, each of the threadsafter passing from the rotatable 13211344: on opposite sides of theblocker), is directed through the guide eye or pigtail 4 3, thenceupwardly to be as,- sen'ibled at the traverse bar and spool (not shown).i

It will be understood that various changes may be resorted to in theform, construction and arrangement of the several parts withoutdeparting from the spirit and scope of our invention; and hence, we donot intend to be limited to the details hereinshown and described,except as they may be included in the claims.

lVhat we claim is r 1, A device of the character described comprising, acounterbalance thread breaker pivoted to swing into position to breakthe threads, and a device mounted to oscillate on said breaker andprovided with a bar for supporting the threads, whereby the breaking ofa thread will free the bar and cause the device to rock and the breakerto swing into the path of the unbroken thread.

2. A device of the character described comprising, a counterbalancethread breaker pivoted to swing into position to break the threads, anda device mounted to oscillate on said breaker and provided with a bareX- tending in opposite directions therefrom for supporting the threads,whereby the breaking of a thread will free one end of the bar and causethe device to rock and the breaker to swing into the path of theunbroken thread.

A, device of the character described comprising, a counterbalance threadbreaker pivoted to swing into position to break the threads, and adevice mounted to oscillate on said breaker and provided with a barrtatably journaled therein for supporting the threads, whereby thebreaking of a thread will free the bar and cause the device to rock andthe breaker to swing into the path of the unbroken thread.

at. A device of the character described comprising, a counterbalancethread breaker pivoted to swing into position to break the threads, anda device mounted to'oscillate on said breaker and provided with a bareX- tending in opposite directions therefrom and rotatably journaledtherein for supporting the threads, whereby the breaking of a threadwill free one end of the bar and cause the device to rock and thebreaker to swing into the path of the unbroken thread.

5. A device of the character described comprising, a frame, acounterbalance thread breaker pivoted therein and adapted to swing intoposition to break the threads, guides carried by the frame having eyesfor separating the threads, and a device mount: ed to oscillate on saidbreaker and provided with a bar coacting with said guides to support thethreads, whereby the breaking of a thread will free the bar and causethe device to rock and the breaker to swing into the path of theunbroken thread.

6. A device of the character described con'iprising, a frame, acounterbalance thread breaker pivoted therein and adapted to swing intoposition to break the threads, guides carried by the frame forseparating the threads, and a device mounted to oscillate on saidbreaker and provided with a bar extending in opposite directionstherefrom and arranged to coact with said guides to support the threads,whereby the breaking of a thread will free one end of the bar and causethe device to rock and the breaker to swing into the path of theunbroken thread.

7. A device of the character described comprising, a frame, acounterbalance thread breaker pivoted therein and adapted to swing intoposition to break the threads, guides carried by theframe for separatingthe threads, and a device mounted to oscillate on said breaker andprovided with a bar rotatably journaled therein and arranged to coactwith said guides for sup-porting the threads, whereby the breaking of athread will free the bar and cause the device to rock and the breaker toswing into the path of the unbroken thread.

8. A device of the character described comprising, a frame, acounterbalance thread breaker pivoted therein and adapted to swing intoposition to break the threads, guides carried by the frame forseparating the threads, and a device mounted to oscillate on saidbreaker and provided with a bar extending in opposite directionstherefrom and rotatably journaled therein, said bar being arranged tocoact with said guides for supporting the threads, whereby the breakingof a thread will free one end of the bar and cause the device to rockand the breaker to swing into the path of the unbroken thread.

9. A device of the character described comprising, a counterbalancethread breaker pivoted to swing into position to break the threads, anda device carried b-v said breaker, said device comprising a block, a barlocated therein for supporting the threads, and means for pivotallymounting said block on the breaker, whereby the breaking of a threadwill free the bar and cause the device to rock and the breakerto swinginto the path of the unbroken thread.

10. A device of the character described comprising, a counterbalancethread breaker pivoted to swing into position to break the threads, anda device carried by said breaker, said device comprising a block, a barextending in opposite directions therefrom for supporting the threads,and means for pivotally mounting said block on the breaker, whereby thebreaking of a thread will free the bar and cause the device to rock andthe breaker to swing into the path of the unbroken thread. i

11. A device of the character described comprising, a counterbalancethread break er pivoted to swing into position to break the threads, anda device carried by said breaker, said device comprising a block, a barrotatably journaled therein for sumporting the threads. and means forpivot-ally mounting said block on the breaker. whereby the breaking of athread will free the bar and cause the device to rock and throw thebreaker off center into the path of the unbroken thread.

12. A device of the character described comprisin a counterbalancethread break erpivoted to swing into position tobreak thev threads, anda device carried by said breaker, said device comprising a block, a barlocated therein for supporting the threads, and means for pivotallymounting said block on the breaker, said means including an elementhaving a pivot for the block and a member for securing the block to thebreaker, whereby the breaking of a thread will free the bar and causethe device to rock and throw the breaker of]? center into the path ofthe unbroken thread.

13. A device of the character described comprising", a counterbalancethread breaker pivoted toswing into position tobreak the threads, and adevice carried by said breaker, said device comprising a block, a barextending in opposite directions therefrom and rotatably journaledtherein for supporting" the threads, and means for pivotally mountingsaid block on the breaker, said means including; an element having apivot for the block and a member for securing the bloca to the breaker,whereby the breaking of a thread Will free the bar and cause the device"to rock and throw the breaker off center into the path of the unbrokenthread.

14. A. device of the character described comprising, a counterbalancethread breaker pivoted to swing into position to break the threads, anda device carried by said breaker,'said device comprising a block, a,

bar located therein. for supporting the threads, and means for pivotallymounting said block on the breaker, said means. including an elementhaving a pivot member for the block and a. resilient member for securingthe block to the breaker, whereby the breaking of a thread will free thebar and cause the device to rock and throw the break from and rotatablyjournaled therein for supporting the threads, and means for pivotallymounting said block on the breaker, said lneans including anelement'having a pivot member for the block and a resilient member forsecuring the block to the breaker,

whereby the breaking of a thread will free the bar and cause the deviceto rock and throw the breaker ofi center into the path of the unbrokenthread.

In testimony, that We claim the foregoing; as our'joint invention, Wehave signed our names this 15th day of January, 1925.

FERDINAND Q. HARTMAN. EUGENE ATWVOOD HARTMAN.

